Hand blast-torch.



B. M. HOWELL.

HAND BLAST TORCH.

APPLICATXON FILED AUG.26. 191s.

Patehted Apr. 9, 1918.

LQQA9O BERT IVL HOWELL, OF NEWTON, ILLINOIS.

'HAND BLAST-TORCH.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed August 26, 1916. Serial No. 117,051.

To all whom it may concern:

Be it known that I, BERT M. HOWELL, a citizen of the United States, and resident of Newton, in the county of Jasper and State of Illinois, have invented certain new and useful Improvements in Hand Blast-Torches, of which the following is a specification.

The present invention relates to liquid and gaseous fuel burners and has particular reference to new and useful improvements in hand torches, an object of the invention being to provide a portable hand torch which is simple in construction, cheap to manufacture, effective in operation, and safe and reliable in use. 7

Another object of my invention is to provide a hand torch for producing a blue flame having an intense heat suitable for welding purposes and designed to obviate the use of soldering irons and the like. Of course, the system employed in the production of the blue flame may be adapted to larger devices, but in my invention as at present developed, the preferred application of the principle is as shown in the drawing, in which:

The figure represents a hand torch and fuel supply device embodying the improvements of my invention.

Referring more particularly to the drawing, wherein similar characters of reference designate like and corresponding parts, A designates in its entirety the torch proper, and B designates in its entirety the fuel and air supply.

Referring to the torch proper I provide a tubular member 10 having a nozzle 10 on the free end thereof. A supporting clamp C including two sections 11 and 12 is provided, the section 11 being engaged as at 13 with the tube 10 and being slidable upon the same. A wing nut 14 connects the sections 11 and 12 and maintains the same in adjusted angular relation. The section 12 is provided with a clamping portion 15 engaging the burner tube 16 of an alcohol torch having a fuel chamber 17 and a wick 18. A cover 19 is provided carrying the burner 16, said cover being in threaded engagement with the fuel chamber 17. The wick 18 projects slightly beyond the free end of the burner 16 as indicated at 20 for a purpose which will hereinafter appear. The fuel contained in the fuel chamber 17 I provide a second fuel source designated B in its entirety and including acontainer 21, which may be an ordinary glass jar, the container 21 having a screw cap 22 for closing the same, a sealing washer 23 being associated with the cap for an obvious purpose.

An air inlet tube 24 is carried by the cap 22, an air conduit 25 communicating with said tube. An air filterer 26 formed of wire gauze or the like is inserted in the conduit 24. The lower free end of the air conduit 24 carries a funnel 27, a cylindrical wick 28 being draped over said funnel and partially submerged as at 29 in gasolene, .benzin, or i he like. A gas outlet tube 30 is carried by the cap 22 and projects into the gas chamber, gas filtering means in the form of a wire gauze strainer 31 being carried by said tube. A flexible conduit 32 communicates with the tube 30 and with the tube 10, a wire gauze strainer 33 being inserted in the latter. If desired, suitable valves may be interposed V in the tubes 24, 30 and 10, however the device will work successfully without the use of any controlling valves. If desired, an air pump may be connected to the air conduit 25 or a bulb may be carried by the free end thereof.

In operation the alcohol burner is lighted and the same adjusted to a position adjacent the nozzle 10.

Air pressure is now applied to the conduit 25, the air being delivered through the funnel 27, to the interior of the cylindrical wick. The air is forced through the wick mixing with the liquid fuel absorbed thereby and producing a gas or vapor which travels through the outlet tube 30, conduit 32 and tube 10 to the nozzle 10 from which it is projected at relatively high pressure. The gas is ignited by the alcohol flame, the same combining with the gas to produce a blue pointed flame of a shape similar to that shown at 34. This flame is of a convenient shape to permit its application to very fine work facilitating the production of neat results in welding small work. I desire to lay particular stress upon the extreme simplicity of my improvedtorch, it being possible to purchase all of the materials from which the same is constructed from any hardware store, it being unnecessary to use any complicated dies. or: other machinery formanufacturing the device. To obtain a fairly steady flame it is only necessary to From the above descriptlon takenin con nection with the accompanying drawing, itis thought. that aclear and comprehensive understanding of the construction operation and advantages of my invention may be had, and while I have shown and described the device as embodying a specific structure,-,I desire that it be understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

7 Hzving thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A device of the character described, including a gaseous fuel holder, means for mixing air with. said fuel and forcing the same from the holder to a burner therefor, including a tubular member having a nozzle on the free end thereof, a supporting mem- 'ber carried by the nozzle, and a liquid fuel burner carried by said supporting member, whereby to miX the gas delivered from said holder and the flame of the liquid burner toproduce a flame of intense heat.

2. 111121; deviceof he character described,

the combination of a gaseous fuel burner comprising a receptacle having gasolene or the like therein, a screw cap mounted on the receptacle, an air inlet tube, extending through said cap a funnel mounted on the end of the tube within the receptacle, a cylindrical wick draped over. said funnel-and submerged in the gasolene causing the air from the inlet tube to become impregnated with the gasolene, a tubular. member exte11ding through said cap, a nozzle formed on the free end of the tubular member, a supporting member carried by the nozzle, and

BERT M. HOWELL.

Gopies of'thispatent maybe obtained for five cents each; byaddressing the Gommissioner'of Patents,

Washington, D. G. 

